diff --git a/invert-report/src/jsMain/kotlin/com/squareup/invert/common/utils/FormattingUtils.kt b/invert-report/src/jsMain/kotlin/com/squareup/invert/common/utils/FormattingUtils.kt
index 7bda3f3..a162935 100644
--- a/invert-report/src/jsMain/kotlin/com/squareup/invert/common/utils/FormattingUtils.kt
+++ b/invert-report/src/jsMain/kotlin/com/squareup/invert/common/utils/FormattingUtils.kt
@@ -4,13 +4,14 @@ import com.squareup.invert.models.js.MetadataJsReportModel
 import kotlinx.datetime.Instant
 import kotlinx.datetime.TimeZone
 import kotlinx.datetime.toLocalDateTime
+import kotlin.js.Date
 
 object FormattingUtils {
   fun Int.formatDecimalSeparator(): String {
-    if (this < 1000) {
-      return this.toString()
+    return if (this < 1000) {
+      this.toString()
     } else {
-      return toString()
+      toString()
         .reversed()
         .chunked(3)
         .joinToString(",")
@@ -33,4 +34,16 @@ object FormattingUtils {
 
     return formattedDate
   }
+
+  /**
+   * Formats an epoch time in seconds to a date string in the format "YYYY-MM-DD".
+   */
+  fun formatEpochToDate(epochSeconds: Long): String {
+    val date = Date(epochSeconds * 1000)
+    val year = date.getFullYear()
+    val month = (date.getMonth() + 1).toString().padStart(2, '0') // Months are 0-indexed
+    val day = date.getDate().toString().padStart(2, '0')
+
+    return "$year-$month-$day"
+  }
 }
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